Newton STFC-NARIT - EXOhSPEC

牛顿 STFC-NARIT - EXOhSPEC

• 批准号: ST/P005667/1
• 负责人: Hugh Jones
• 金额: $ 9.17万
• 依托单位: University of Hertfordshire
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FP005667%2F1
• 关键词: Newton; STFC; NARIT; EXOhSPEC

The project is to build from catalogue components a new kind of high resolution spectrograph. The concept relies on separating the complexity introduced by Earth from the requirements on the spectrometer unit itself. This separation enables a massive reduction in size and complexity on the spectrometer side and it is the natural complement to Adaptive Optics technologies being developed elsewhere. The concepts demonstrated here might be used to save tens of millions of pounds in instrumentation costs on the coming generation of extremely large telescopes but also be reproducible by University, public and amateur observatories and offer a competitive alternative to the purchase of large inefficient Fourier transform spectrometers in the wider market place. The key developments that we wish to demonstrate are, (1) a compact inexpensive design that can achieve the same performance as existing instruments in terms of wavelength coverage and spectral resolution and (2) bespoke active metrology/actuation of the system to achieve -or even surpass- the best wavelength calibration stability at a fraction of construction and operation costs and to produce a prototype. While the testbed for this instrument is at the University of Hertfordshire, the actual prototype will be produced in Thailand. The Thai government has made a large investment in the National Astronomical Research Institute of Thailand and so they have the new laboratories to build the instrument and to test it on their newly built 0.7 and 2.4m telescopes. Current high resolution spectrographs are large, expensive and difficult to maintain and are reserved to an elite of a handful universities and groups around the globe. Moreover, because these instruments are so expensive, technology cycles and designs have evolved very little and do not take advantage of the great quality improvement and reduced costs of new materials and mass produced optics. In a sense, the technology leap we want to embrace is like the one between the first digital cameras to the current smartphone technology.The economic development and welfare of a country relies on key infrastructure and the capabilities of the workforce. In the field of physics and in particular astrophysics, the ability to design and make instruments and to measure and interpret the properties of the transitions in other planets, stars and galaxies is a key cornerstone to understand the properties of the Universe. High resolution spectroscopy has for decades being a primary tool of astrophysics and a driving force in enabling new fundamental astrophysics. From the discovery of planets around nearby stars to the direct measurement of the size of the Universe. Worldwide, the most oversubscribed instruments on telescopes have long been the high resolution spectrographs. Although Thailand has a large telescope and a number of smaller ones it does not have a high resolution spectrograph. The proposal is aimed at using Overseas Development Aid funding to develop Thai infrastructure and capabilities while at the same time opening up a new collaboration which should have long term benefit to the UK scientists and engineers.

该项目将从目录组件中构建一种新型的高分辨率光谱仪。该概念依赖于将地球引入的复杂性与光谱仪单元本身的要求分开。这种分离使光谱仪侧的大小和复杂性大大降低，这是自适应光学技术的自然补充。此处展示的概念可能用于节省几千万英镑的仪器成本，即将到来的非常大的望远镜，但也可以由大学，公共和业余观测者重现，并为在更广泛的市场中购买大型较大的傅立叶变换光谱仪提供了有竞争力的替代品。我们希望证明的主要发展是，（1）一种紧凑的廉价设计，可以在波长覆盖范围和频谱分辨率方面与现有仪器相同的性能以及（2）系统对系统的定制主动计量/促进，以实现 - 甚至可以超越最佳的波长校准稳定性，即在构造和操作成本和生产prototype的一部分，以构造和操作成本。虽然该乐器的测试床是在赫特福德郡大学的，但实际的原型将在泰国生产。泰国政府已经在泰国国家天文研究所进行了大量投资，因此他们拥有新的实验室来建造该工具并在新建的0.7和240万望远镜上对其进行测试。当前的高分辨率光谱仪很大，昂贵且难以维护，并保留给全球少数大学和群体的精英。此外，由于这些乐器是如此昂贵，因此技术周期和设计的发展很少，并且无法利用新材料和质量生产的光学质量的质量改进和降低的成本。从某种意义上说，我们想要拥抱的技术飞跃就像是当前智能手​​机技术的第一个数码相机之间的飞跃一样，一个国家的经济发展和福利依赖于关键基础设施和劳动力的能力。在物理学，特别是天体物理学领域，具有设计和制造工具，测量和解释其他行星，恒星和星系中过渡的特性的能力是了解宇宙特性的关键基石。数十年来，高分辨率光谱学已成为天体物理学的主要工具，也是实现新的基本天体物理学的驱动力。从发现附近恒星周围的行星到直接测量宇宙的大小。在全球范围内，望远镜上最多的商品仪器长期以来一直是高分辨率光谱仪。尽管泰国的望远镜有较大的望远镜和许多较小的望远镜，但它没有高分辨率的光谱仪。该提案旨在利用海外发展援助资金来开发泰国基础设施和能力，同时开设新的合作，这应该对英国科学家和工程师长期受益。

项目成果

Incoherent light in tapered graded-index fibre: A study of transmission and modal noise

锥形渐变折射率光纤中的非相干光：传输和模态噪声的研究

• DOI: 10.1016/j.yofte.2022.103140
• 发表时间: 2023
• 期刊: Optical Fiber Technology
• 影响因子: 2.7
• 作者: Choochalerm P

Efficient Follow-up of Exoplanet Transits Using Small Telescopes

使用小型望远镜有效跟踪系外行星凌日

• DOI: 10.1088/1538-3873/ab1eb4
• 发表时间: 2019
• 期刊: Publications of the Astronomical Society of the Pacific
• 影响因子: 3.5
• 作者: Beck P

Mitigating modal noise in multimode circular fibres by optical agitation using a galvanometer

使用检流计通过光搅拌减轻多模圆形光纤中的模态噪声

• DOI: 10.1093/rasti/rzad059
• 发表时间: 2024
• 期刊: RAS Techniques and Instruments
• 作者: Ghosh S

A small actively-controlled high-resolution spectrograph based on off-the-shelf components

基于现成组件的小型主动控制高分辨率摄谱仪

• DOI: 10.48550/arxiv.2011.10526
• 发表时间: 2020
• 作者: Jones H

Highly replicable, low-cost, portable, general-purpose, high-resolution spectrometer with applications in stellar studies and exoplanet science

高度可复制、低成本、便携式、通用、高分辨率光谱仪，适用于恒星研究和系外行星科学

• DOI: 10.1117/12.2529290
• 发表时间: 2019
• 作者: Baker C